一种咽喉表面麻醉装置
By introducing flexible scrapers and wiping components into the pharyngeal surface anesthesia device, the problem of anesthetic drug dilution was solved, and full contact between the drug and the inner surface of the pharynx was achieved, thereby improving the anesthetic effect and protecting the pharynx.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANFANG HOSPITAL OF SOUTHERN MEDICAL UNIV
- Filing Date
- 2025-03-28
- Publication Date
- 2026-07-17
Smart Images
Figure CN224506078U_ABST
Abstract
Claims
1. A throat surface anaesthesia device, characterised in that: The device includes a main insertion tube with openings at the top and bottom. A flexible first scraper is fixedly provided on the upper outer surface of the lower end of the main insertion tube. A flexible second scraper is fixedly provided on the main insertion tube above the first scraper. A flexible wiping element is sleeved on the main insertion tube between the first scraper and the second scraper. A cylindrical injection bladder is fixed on the outer surface of the main insertion tube on the upper side of the second scraper. Several spray holes are embedded in the outer side of the injection bladder. The inner side of the injection bladder is connected to the lower end of the injection tube. The injection tube passes into the main insertion tube and extends upward in the main insertion tube to the upper opening.
2. A laryngeal surface anaesthesia device according to claim 1, characterised in that: The first scraper is a ring-shaped silicone sheet.
3. A laryngeal surface anaesthesia device according to claim 1, wherein: The second scraper is a ring-shaped silicone sheet.
4. A laryngeal surface anaesthesia device according to claim 1, wherein: The wiping device includes an inner annular medical sponge block, and an outer annular medical cotton layer is adhered to the outside of the medical sponge block.
5. A laryngeal surface anaesthesia device according to claim 1, wherein: The outer surface of the wiping element protrudes from the outer ends of the first and second scrapers.
6. A laryngeal surface anaesthesia device according to claim 1, characterised in that: The main cannula is a malleable structure, including an outer silicone tube, in which several malleable metal strips are circumferentially embedded.
7. A laryngeal surface anaesthesia device according to claim 1, wherein: A limiting element is fixed between the outer side of the upper end of the injection tube and the inner surface of the upper end of the main insertion tube.
8. A laryngeal surface anaesthesia device according to claim 7, characterised in that: The limiting component is a circumferentially spaced silicone block. The inner side of the silicone block is bonded and fixed to the outer surface of the injection tube, and the outer surface of the silicone block is bonded and fixed to the inner surface of the main insertion tube.